@ardatan/relay-compiler/lib/transforms/FilterDirectivesTransform.js

Fork of `relay-compiler`

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 *
 * @format
 */
// flowlint ambiguous-object-type:error
'use strict';

var IRTransformer = require('../core/IRTransformer');

/**
 * A transform that removes any directives that were not present in the
 * server schema.
 */
function filterDirectivesTransform(context) {
  var schemaDirectives = new Set(
    context
      .getSchema()
      .getDirectives()
      .filter(function (directive) {
        return !directive.isClient;
      })
      .map(function (schemaDirective) {
        return schemaDirective.name;
      }),
  );

  var visitDirective = function visitDirective(directive) {
    if (schemaDirectives.has(directive.name)) {
      return directive;
    }

    return null;
  };

  return IRTransformer.transform(context, {
    Directive: visitDirective,
  });
}

module.exports = {
  transform: filterDirectivesTransform,
};